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IDT74FCT621AT Datasheet

FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)

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IDT74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
FAST CMOS
OCTAL BUS TRANSCEIVER
(OPEN DRAIN)
INDUSTRIALTEMPERATURERANGE
IDT74FCT621T/AT
FEATURES:
• Std. and A grades
• Low input and output leakage 1µA (max.)
• CMOS power levels
• True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• Meets or exceeds JEDEC standard 18 specifications
• Power off disable outputs permit "live insertion"
• Available in SOIC package
DESCRIPTION:
The IDT74FCT621T is an octal transceiver with non-inverting Open-
Drain bus compatible outputs in both send and receive directions. The B
bus outputs are capable of sinking 64mA providing very good capacitive
drive characteristics. These octal bus transceivers are designed for
asynchronous two-way communication between data buses. The control
function implementation allows for maximum flexibility in timing.
FUNCTIONAL BLOCK DIAGRAM
GBA 19
1
GAB
2
A1
18 B1
A2-A8
B2-B8
SEVEN OTHER TRANSCEIVERS
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2016 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
NOVEMBER 2016
DSC-2538/13


Integrated Device Technology Electronic Components Datasheet

IDT74FCT621AT Datasheet

FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)

No Preview Available !

IDT74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
PIN CONFIGURATION
GAB 1
20 VCC
A1 2
19 GBA
A2 3
18 B1
A3 4
17 B2
A4 5
16 B3
A5 6
15 B4
A6 7
14 B5
A7 8
13 B6
A8 9 12 B7
GND 10
11 B8
SOIC
TOP VIEW
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
VTERM(2)
VTERM(3)
TSTG
IOUT
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Max
–0.5 to +7
–0.5 to VCC+0.5
–65 to +150
–60 to +120
Unit
V
V
°C
mA
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability. No terminal voltage may exceed
Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 6 10 pF
COUT
Output Capacitance VOUT = 0V
8
12 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
Description
GBA, GAB
Enable Inputs
A1 – A8
A Inputs or Open-drain Outputs
B1 – B8
B Inputs or Open-drain Outputs
FUNCTION TABLE(1)
Enable Inputs
GBA GAB
Function
L L B data to A bus
H H A data to B bus
HL
OFF
L H B data to A bus
A data to B bus
NOTE:
1. H = HIGH Voltage Level.
L = LOW Voltage Level.
OFF = HIGH if pull-up resistor is connected to Open-Drain output.
2


Part Number IDT74FCT621AT
Description FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
Maker Integrated Device Technology
Total Page 6 Pages
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